I picked this little beauty up from ebay for just over a couple of hundred pounds. Just had my first film I put through it developed, and added this gallery:
http://www.pbase.com/nickdemarco/leica_iiif
I found the camera almost imposible to focus (much worse than other screw mount cameras I have) and most of the negatives were not good enough. A few were though. On the upside, having checked the serial number I think I might have a quite rare model.